QuestionThe value of 1+3+5+7+9+.+25 is: A 196 B 625 C 225 D 169 Easy Solution Verified by Toppr Correct option is D) We take the first term a=1, last term l=25, common difference d=2 and the number of terms =n. Then, since it is an A.P. series, l=a+(n−1)d n= dl−a+1 = 225−1+1 = 225−1+2 = 225+1 = 226 =13 Let S n be the sum of n=13 terms
Eachnumber in the series, and any combination of those numbers is a subset of 1,3,5,7,9. To be more clear, 1 is a subset, so are 3,5,7 or 9. 1&3 are also a subset, so are 5&7 and 7&9. all of the numbers less any one of the numbers is also a subset. so 1,3,5,& & are a subset. as is 3,5,7&9. get it?
SolutionGiven: 1, 3, 5, 7, 9, 11 Note: 1+2= 3 3+2= 5 5+2= 7 7+2= 9 9+2= 11 Thus, every successive number is formed by adding 2 to the previous number. ∴ The next number can be obtained by adding 2 to the last given number, which is 11. ∴ Next number = 11 + 2 = 13 Suggest Corrections 0 Similar questions Q.
Whatis the nth term of the arithmetic sequence 1,3,5,7,9,11? A n+1 B n−1 C 2n+1 D 2n−1 Easy Solution Verified by Toppr Correct option is D) Clearly, the difference of successive terms of above sequence is constant which is 2 So given sequence is in AP with first term 1 and common difference 2 Hence general term is, a n=a+(n−1)d=1+(n−1)2=2n−1

Themean of 1, 3, 5, 7, 9, 11, 13 is 7. We can easily solve this problem by following the given steps. Mean of the given data = 1+3+5+6+9+11+13/7 ( The total number of observations here is 7. Step-by-step explanation: Mean of 3,5,7,9,11,13,15. No. of data =7. ∴Mean= 7. 3+5+7+9+11+13+15 = 7. 63 =9. Arithmetic mean (AM)

Convert1/9 times 3/5 to Decimal. Here's a little bonus calculation for you to easily work out the decimal format of the fraction we calculated. All you need to do is divide the numerator by the denominator and you can convert any fraction to decimal: 3 45 = 0.0667.
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